Bump mobx from 5.14.0 to 5.15.0

Bumps [mobx](https://github.com/mobxjs/mobx) from 5.14.0 to 5.15.0.
- [Release notes](https://github.com/mobxjs/mobx/releases)
- [Changelog](https://github.com/mobxjs/mobx/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mobxjs/mobx/compare/5.14.0...5.15.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -22,7 +22,7 @@
     "date-fns": "^2.2.1",
     "dotenv": "^8.2.0",
     "lodash": "^4.17.11",
-    "mobx": "^5.5.0",
+    "mobx": "^5.15.0",
     "mobx-react": "^6.1.3",
     "prop-types": "^15.6.2",
     "query-string": "^6.2.0",

yarn.lock

@@ -5149,10 +5149,10 @@ mobx-react@^6.1.3:
   dependencies:
     mobx-react-lite "1.4.0"
 
-mobx@^5.5.0:
-  version "5.14.0"
-  resolved "https://registry.yarnpkg.com/mobx/-/mobx-5.14.0.tgz#357c1023aca2851df357fa0cb9a6eaaab3a57793"
-  integrity sha512-GhDSZV9rGlCeVBpFPVYaYSn7UjgkD3158Njailp4IJhKqbT5iiEtiRyr76b7gPj3wpUSl+NHREQqBXzc1I8jpQ==
+mobx@^5.15.0:
+  version "5.15.0"
+  resolved "https://registry.yarnpkg.com/mobx/-/mobx-5.15.0.tgz#3ef34ac4965169698eff6df72f18c2a735e8e7f8"
+  integrity sha512-Ax7vE32zBRgO0A3Yu12RXaFwIhBzpGQXZjRHiDvKLrqpDEijhNTSuXJ1Ci+L30BSa/Mb3by9+3nuKq15YoH5dA==
 
 move-concurrently@^1.0.1:
   version "1.0.1"